Concurrency is a growth management concept intended to ensure that the necessary public facilities and services are available concurrent with the impacts of development. To carry out transportation concurrency, local governments must define what constitutes an adequate level of service (LOS) and measure whether the service needs of a new development outrun existing capacity and any scheduled improvements in the Capital Improvements Element (CIE). If adequate capacity is not available, the local government cannot permit development unless certain conditions apply as provided for in statute, such as “de minimis” exemptions for developments having only minor impacts or concurrency exception areas to encourage infill and redevelopment.